/*
 * Copyright (c) 2013, Charles Santos da Silva <silva.charlessantos@gmail.com> -
 * scharlessantos.org
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 * 1. Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 */
package org.scharlessantos.atlas;

import org.scharlessantos.hermes.Hermes;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.HashMap;
import java.util.Map;

/**
 * 
 * @author Charles Santos da Silva
 */
class Translation {
	
	private final Map<String, String> translations = new HashMap<String, String>();
	private final Language            language;
	
	public Translation(Language language) {
		this.language = language;
	}
	
	public boolean loadTranslations(InputStream input) {
		if (input == null)
			return false;
		
		try {
			BufferedReader rd = new BufferedReader(new InputStreamReader(input, "UTF-8"));
			try {
				String line;
				int i = 0;
				while ((line = rd.readLine()) != null) {
					i++;
					if (!line.startsWith("#") && !line.trim().equals("")) {
						String[] parts = line.split("=");
						if (parts.length != 2)
							Hermes.warn("Bad Translation File (language=%s: line=%d): translation=%s", language.toString(), i, line);
						else {
							addTranslation(parts[0], parts[1]);
						}
					}
				}
			} finally {
				rd.close();
			}
		} catch (IOException e) {
			Hermes.error(e);
		}
		
		return translations.size() > 0;
	}
	
	private void addTranslation(String key, String translation) {
		if (translations.get(key) == null)
			translations.put(key, translation);
		else
			Hermes.warn("Atlas already contains translation for key: " + key + " -> " + translations.get(key));
		
	}
	
	public String translate(String key) {
		return translate(key);
	}
	
	public String translate(String key, Object[] args) {
		if (translations.get(key) != null)
			if (args == null || args.length <= 0)
				return translations.get(key);
			else
				return String.format(translations.get(key), args);
		
		Hermes.warn("Missing translation (%s): %s", language.toString(), key);
		return key;
	}
}
